Characteristics of a route such as speed limit and functional class can be represented as a linear event with starting and ending measure information along the route.
The Line Events tool provides an interface to add linear events into the geodatabase. You can also use referent offset data to add events to a route. The referent offset data is translated to routes and measures for storage.
In this method, the event's from measure and to measure are located on the basis of the measure values from the selected route. As shown in the example below, the from and to measures of the route are 0 and 10, respectively. An event with from and to measures of 2 and 8 can be located on the route. The route and measure method is always the first option (in the form of the network's name) in the Method drop-down list.
注意:
In cases where events on a route are edited and you want to see the previous events on the route at that location, don't use the Add Linear Event widget. Instead, edit events in the Event Selection table or the Attribute Set table. If this method is used, you can see what was previously on the routes at the specified measures.
In the From section, click the Method drop-down arrow and choose the network from the list.
Provide the intended start location for the new linear event along the route using any of the following options.
Type the value in the Measure text box.
Click the Select from Measure on the Map button to choose the start measure value along the route on the map.
Click the Measure drop-down arrow to select either Use the Route Start or Use the Route End as the start measure value for the event.
If you type the from measure value, you can choose the unit for that value using the drop-down arrow. The from measure value is converted into the LRS units before saving the newly added events. For example, the LRS is in miles and you have entered 1,000 feet as the start measure value. The newly added events will have a from measure value of 0.189394 miles because 1,000 feet equals 0.189394 miles.
A green plus appears at the selected location on the map.
In the To section, click the drop-down arrow and choose the method for selecting the
end measure value for the events.
Choose the network (MilePoint in this case) to enter the to measure value for a single route.
Choose a point layer to enter the to measure value using a referent offset.
Choose Length to indicate the overall length of the event.
注意:
You can use any combination of methods to enter the start measure and end measure values. For example, you can use the Select from Measure on the Map tool to choose the from measure value, and then use the referent offset from a point to define the end measure value along the route on the map.
You can also add events in the reverse direction of calibration of the route; for example, you can provide a start measure value greater than the end measure value for the events on the Add Linear Events widget. The resulting events in this case are created with the lesser value as the start measure, and the greater value as the end measure.
Provide the intended start location for the new linear event along the route using any of these methods:
Type the value in the Measure text box.
Click the Select To Measure on the Map button to choose the end location along the route on the map.
Click the Measure drop-down arrow and choose either Use the Route Start or Use the Route End as the end measure value for the event.
A red cross appears at the selected location on the map.
Providing measures in a different LRM than the events are stored in
You can specify the LRS Network that will be used as a source LRM for input start and end locations for the new linear event. If the selected LRS Network is not the same as the one that the linear event layer is registered with, Event Editor performs an internal translation of measures to always store the measure value in the LRM of the LRS Network with which the event is registered.
In cases where the input location for the new event does not partially overlap the route in the target LRS Network, the measure values of the linear event created are adjusted to match the shape of the route.
In cases where the input location for the new event may intersect more than one route in the registered LRS Network, the linear event is split into multiple events so the shape of the events matches the shape of the route feature intersecting it, and the measure values are adjusted.
In cases where the input location for the new event may intersect more than one route (concurrent) in the registered LRS Network, a linear event is created for all the routes in the concurrent section of the input.
をクリックします。
をクリックし、マップ上のルートを選択することもできます。
をクリックして、ルートのレッドラインにリニア イベントを追加します。
をクリックし、マップの表示を更新して、選択したルートの範囲全体を拡大します。
を使用すると、[リニア イベントの追加] で、また関連レコード ウィジェットが開いていない場合はマップ上のその他のウィジェットで、ルートのハイライト表示が解除されます。
to choose the start measure value along the route on the map.
をクリックし、マップ上のルートをクリックして、別のルートのイベント属性をコピーします。
